Do Babies Prefer Speaking Singing? Psychologists in Montreal and Toronto conducted a study to determine if babies show any preference for speech over general noise. As part of the same study, the researchers also were interested in whether babies preferred singing or speechFifty infants between the ages of 4-13 months were exposed to both happy-sounding infant speech and a hummed lullaby by the same womanInterest in each sound was measured by the amount of time the baby looked at the woman while she made noise. Fortyof the original fifty infants were exposed to both singing and speech by the same womanInterest was again measured by the amount of time the baby looked at the woman while she made noiseIn this case the mean time while speaking was 66.97 with a standard deviation of 43.42 and the for singing was with a standard deviation of 31.57 seconds. The mean of the differences was 10.39 more seconds for the speaking treatment with a standard deviation of 55.37 secondsPerform the appropriate test to determine if this is sufficient evidence to conclude that babies have a preference either way) between speaking and singing CorbeilTrehub. S.E.PeretzSpeech singinginfants choose happier soundsFrontiers in Psychology25 June, 2013 State the null and alternative hypotheses mu_{d} = 10.39v_{s}*H_{A} / mu_{d} > 10.39; H_{0} / mu_{d} = 0m_{A} / mu_{d} < 0; mu 4 =10.39 vs H A : mu d ne10.39; H_{a} / mu_{d} = 0cs*H_{A} / mu_{d} > 0; mu 2 =0 vs H Lambda : mu d ne0 eTextbook and Round your eTextbook and